Evaluates the Rayleigh cumulative probability distribution
function.
Namespace: Imsl.StatAssembly: ImslCS (in ImslCS.dll) Version: 6.5.2.0
Syntax public static double Rayleigh(
double x,
double alpha
)
Public Shared Function Rayleigh (
x As Double,
alpha As Double
) As Double
public:
static double Rayleigh(
double x,
double alpha
)
static member Rayleigh :
x : float *
alpha : float -> float
Parameters
- x
- Type: SystemDouble
A double scalar value representing the argument at which the
function is to be evaluated. It must be non-negative.
- alpha
- Type: SystemDouble
A double scalar value representing the scale parameter.
Return Value
Type:
Double
A
double scalar value representing the probability that a
Rayleigh random variable takes a value less than or equal to
x.
Remarks
Method
Cdf.Rayleigh is a special case of Weibull distribution
function where the shape parameter
gamma is 2.0; that is,
where
alpha is the scale parameter.
See Also